A little know-how.
Practical explanations for the tools you use every day.
Images · PRACTICAL GUIDE
How to fit a photo under an upload limit
A file-size limit and a pixel-size requirement are two separate checks.
Read the guide ↗Images · PRACTICAL GUIDESmaller images, sharper results
A practical way to choose dimensions, compression and file formats.
Read the guide ↗Calculators · PRACTICAL GUIDEWeighted grades and GPA, explained
Two averages, two different kinds of weights.
Read the guide ↗Calculators · PRACTICAL GUIDEWhat grade do I need on my final exam?
Turn a target course grade into a specific exam score.
Read the guide ↗Images · PRACTICAL GUIDEConvert WebP or PNG to JPG without uploading
Create a real JPEG file and decide what happens to transparent pixels.
Read the guide ↗Developer · PRACTICAL GUIDEFormat JSON without rounding large numbers
Keep identifiers, decimal spelling and escapes unchanged while adjusting layout.
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